package e.g.com.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class EncodFilter implements Filter {
	 private String encoding = "gb2312";  
	    protected FilterConfig filterConfig;  
	public void destroy() {
		this.encoding = null; 
		  

	}

	
	public void doFilter(ServletRequest arg0, ServletResponse arg1,
			FilterChain arg2) throws IOException, ServletException {
		HttpServletRequest request=(HttpServletRequest) arg0;
		request.setCharacterEncoding(encoding);
		System.out.println(encoding);
		arg2.doFilter(arg0, arg1);
	}

	
	public void init(FilterConfig arg0) throws ServletException {
		  this.filterConfig = arg0;    		      
		    if(filterConfig.getInitParameter("encoding") != null)  
		        encoding = filterConfig.getInitParameter("encoding");  

	}

}
